dentin

[ den-tn, -tin ]

noun

, Dentistry.

1. the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth, surrounds the pulp cavity, and is situated beneath the enamel and cementum.

dentin

/ dĕn′tĭn /

1. The main bony part of a tooth beneath the enamel, surrounding the pulp chamber and root canals.

dentin

1. The hard, bony material beneath the enamel of a tooth . The bulk of a tooth is made up of dentin.

Other Words From

• dentin·al adjective

Word History and Origins

Origin of dentin¹

First recorded in 1830–40; dent- + -in ²

Example Sentences

One, called MEP1a, plays a role in forming dentin, the layer of tissue surrounding the tooth’s pulp.

From Popular-Science

Still, it can easily be renewed, or if all the tin is removed we find the dentin hard and firm.

From Project Gutenberg

Nature will not restore the lost part, but will do the next best thing—solidify the dentin.

From Project Gutenberg

In some cases, under tin, the pulp gradually recedes, and the pulp-cavity is obliterated by secondary dentin.

From Project Gutenberg

The effect is to cause the surface exposed to dentin to oxidize more than tin would do alone; in that there is a benefit.

From Project Gutenberg